端口超出范围：-1 用于通过 WSO2 API 管理器的 Web Socket API

Question

我正在尝试通过 WSO2 API 管理器（作为 API 网关）运行 Web 套接字服务。 我有一个有效的概念验证，网关针对我笔记本电脑上的服务运行（网关在服务器上，但我在 Eclipse 中运行该服务来测试它）。 现在我正试图让它在另一台服务器上运行的服务上工作。 如果我调用网关中 API 定义中配置为端点的 URL，则它可以工作。 如果我通过网关运行，那么它不会。 wso2carbon.log 显示：

TID: [-1] [] [2019-07-02 16:00:55,260] ERROR {org.apache.synapse.core.axis2.Axis2Sender} -  Unexpected error during sending message out {org.apache.synapse.core.axis2.Axis2Sender}
java.lang.IllegalArgumentException: port out of range:-1
        at java.net.InetSocketAddress.checkPort(InetSocketAddress.java:143)
        at java.net.InetSocketAddress.<init>(InetSocketAddress.java:224)
        at io.netty.bootstrap.Bootstrap.connect(Bootstrap.java:97)
        at org.wso2.carbon.websocket.transport.WebsocketConnectionFactory.cacheNewConnection(WebsocketConnectionFactory.java:169)
        at org.wso2.carbon.websocket.transport.WebsocketConnectionFactory.getChannelHandler(WebsocketConnectionFactory.java:79)
        at org.wso2.carbon.websocket.transport.WebsocketTransportSender.sendMessage(WebsocketTransportSender.java:106)
        at org.apache.axis2.transport.base.AbstractTransportSender.invoke(AbstractTransportSender.java:112)
        at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
        at org.apache.axis2.description.OutOnlyAxisOperationClient.executeImpl(OutOnlyAxisOperation.java:297)
        at org.apache.axis2.client.OperationClient.execute(OperationClient.java:149)
        at org.apache.synapse.core.axis2.Axis2FlexibleMEPClient.send(Axis2FlexibleMEPClient.java:592)
        at org.apache.synapse.core.axis2.Axis2Sender.sendOn(Axis2Sender.java:83)
        at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:548)
        at org.apache.synapse.endpoints.AbstractEndpoint.send(AbstractEndpoint.java:382)
        at org.apache.synapse.endpoints.AddressEndpoint.send(AddressEndpoint.java:65)
        at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:121)
        at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:97)
        at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:59)
        at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:158)
        at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:1005)
        at org.wso2.carbon.inbound.endpoint.protocol.websocket.InboundWebsocketSourceHandler.injectToSequence(InboundWebsocketSourceHandler.java:469)
        at org.wso2.carbon.inbound.endpoint.protocol.websocket.InboundWebsocketSourceHandler.handleHandshake(InboundWebsocketSourceHandler.java:182)
        at org.wso2.carbon.inbound.endpoint.protocol.websocket.InboundWebsocketSourceHandler.channelRead(InboundWebsocketSourceHandler.java:131)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at org.wso2.carbon.apimgt.gateway.handlers.WebsocketInboundHandler.channelRead(WebsocketInboundHandler.java:125)
        at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:147)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:244)
        at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:147)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
        at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:110)
        at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
        at java.lang.Thread.run(Thread.java:748)
TID: [-1] [] [2019-07-02 16:00:55,267]  WARN {org.apache.synapse.core.axis2.Axis2SynapseEnvironment} -  Executing fault handler due to exception encountered {org.apache.synapse.core.axis2.Axis2SynapseEnvironment}
TID: [-1] [] [2019-07-02 16:00:55,267]  WARN {org.apache.synapse.endpoints.EndpointContext} -  Endpoint : AnonymousEndpoint with address ws://redacted.example.com/notifications/v1 will be marked SUSPENDED as it failed {org.apache.synapse.endpoints.EndpointContext}
TID: [-1] [] [2019-07-02 16:00:55,267]  WARN {org.apache.synapse.endpoints.EndpointContext} -  Suspending endpoint : AnonymousEndpoint with address ws://redacted.example.com/notifications/v1 - last suspend duration was : 30000ms and current suspend duration is : 30000ms - Next retry after : Tue Jul 02 16:01:25 EEST 2019 {org.apache.synapse.endpoints.EndpointContext}
TID: [-1] [] [2019-07-02 16:00:55,267]  INFO {org.apache.synapse.mediators.builtin.LogMediator} -  STATUS = Executing default 'fault' sequence, ERROR_CODE = 0, ERROR_MESSAGE = Unexpected error during sending message out {org.apache.synapse.mediators.builtin.LogMediator}
TID: [-1] [] [2019-07-02 16:00:55,345]  INFO {org.apache.synapse.mediators.builtin.LogMediator} -  STATUS = Executing default 'fault' sequence, ERROR_CODE = 303001, ERROR_MESSAGE = Currently , Address endpoint : [ Name : AnonymousEndpoint ] [ State : SUSPENDED ] {org.apache.synapse.mediators.builtin.LogMediator}

运行 2.1 版 WSO2 API Manager（是的，我们正在积极计划升级，但如果可能的话，我需要让它在当前版本上运行）。 不幸的是，我在我的机器上重复我的初始 PoC 时也遇到了问题。 我认为这是网关中的东西（虽然我不知道已经改变了任何东西）。 但是，我的 IT 部门同时更改了我们本地计算机上的防火墙，所以我不能排除这种可能性......

Answer 1

使用 wss 端点时，我们能够观察到一些错误，并且我们能够使用以下方法摆脱错误。

请在位于 <APIM_HOME>/repository/deployment/server/synapse-configs/default/inbound-endpoints 目录中的 SecureWebSocketInboundEndpoint.xml 文件中包含以下参数。

<parameter name="wss.ssl.protocols">TLSv1.1,TLSv1.2</parameter>

此外，如果文件中存在以下参数（wss.ssl.trust.store.file 和 wss.ssl.trust.store.pass），请从同一个 SecureWebSocketInboundEndpoint.xml 文件中删除以下参数。

<parameter name="wss.ssl.trust.store.file">repository/resources/security/client-truststore.jks</parameter>
<parameter name="wss.ssl.trust.store.pass">wso2carbon</parameter>

请使用以下示例 Web 套接字客户端来尝试并运行 WSS 客户端。 请将变量 carbonKeyStoreLocation 更改为指向 <API-M_HOME>/repository/resources/security/wso2carbon.jks。 请注意，WSS API 的端口是 8099。
您可以在WSS 支持部分下的以下 WSO2 官方文档中下载 WSS 客户端。 （在第二步。）[1] 此外，请更改访问令牌、Web 套接字端点和 carbonKeyStoreLocation 以尝试该场景。

[1] https://docs.wso2.com/display/AM260/Create+a+WebSocket+API

使用 ws 端点时，不需要配置 carbonKeyStoreLocation。 只有您需要包含正确的访问令牌和正确的 ws 端点。 您可以在上述文档中获得 WS 客户端。[1]